1834 - Thomas Davenport of Vermont developed the first real electric motor ('real' meaning powerful enough to do a task) although Joseph Henry and Michael Faraday created early motion devices using electromagnetic fields.
Below is a more detailed usage of operating systems according to age group: 18 to 34 years old. Of all the smartphone users, 50% use Android as operating system, 43% use iPhone, 39% use Microsoft and 38% use RIM. Apparently, more users prefer Android.
And about four-in-ten young people (42%) know that Android is the operating system for Google smartphones, compared with 34% of those ages 30 to 49, 16% of those ages 50 to 54, and just 4% of those ages 65 and older.